Registration began on April 2, 2013 for the Colorado Horse Park's CCI1*, one of only 17 Fédération Equestre Internationale (FEI) qualifiers in the United States. The three-phase event will be held from May 31 through June 2. A Training 3-Day and Horse Trials will also be held on the same dates. Registration begins on April 16 and runs through May 14 for the Horse Trials and Training 3-Day."We really look forward to FEI Eventing," said Vivien Van Buren of the Colorado Horse Park. "Andy Bowles from New Zealand will return to manage the show again this year.